One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,7,9)(3,12,5,8)(4,10,11,6)(13,14,15,16)(17,18,22,25)(19,21,27,23)(20,24,28,31)(26,29,32,30)(33,34,38,42)(35,39,44,48)(36,45,46,40)(37,41,43,47)(1,3,7,5)(2,8,9,12)(4,13,11,15)(6,14,10,16)(20,28)(24,31)(26,32)(29,30)(33,35)(34,39)(36,37)(38,44)(40,47)(41,45)(42,48)(43,46)(2,9)(4,11)(8,12)(13,15)(17,19,22,27)(18,23,25,21)(20,26,28,32)(24,30,31,29)(33,36,38,46)(34,40,42,45)(35,43,44,37)(39,41,48,47)(1,4,7,11)(2,10,9,6)(3,13,5,15)(8,16,12,14)(17,19)(18,21)(20,26)(22,27)(23,25)(24,29)(28,32)(30,31)(33,36)(34,40)(35,37)(38,46)(39,47)(41,48)(42,45)(43,44)(1,5,7,3)(2,8,9,12)(4,15,11,13)(6,14,10,16)(17,20)(18,24)(19,26)(21,29)(22,28)(23,30)(25,31)(27,32)(33,37)(34,41)(35,36)(38,43)(39,45)(40,48)(42,47)(44,46)(1,6,7,10)(2,11,9,4)(3,14,5,16)(8,15,12,13)(17,21)(18,19)(20,29)(22,23)(24,26)(25,27)(28,30)(31,32)(33,34)(35,39)(36,40)(37,47)(38,42)(41,43)(44,48)(45,46)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.